Re: How to write Armenian ligatures?

John Hudson <[email protected]>
Newsgroups gmane.text.unicode.devel
Message-ID <[email protected]>
Andrew West wrote:

> I suspect that it is not Notepad per se that is doing this, but Uniscribe.

Yes, it is Uniscribe, but the point is that Notepad -- unlike Word or even WordPad -- 
exposes all the default shaping that Uniscribe provides for non-complex scripts, including 
support for the <liga> feature.

> Generally speaking, on Windows, plain text editors that support
> Unicode are limited in what OT features they support by the version of
> Uniscribe that is on the user's system.

Yes, but applications can select what calls to make to Uniscribe, and either the 
application or an intermediary library such as OTLS needs to define glyph runs and to make 
decisions about what features Uniscribe should apply. This is why different apps using 
Uniscribe produce different layout behaviour for the same character string set in the same 
font.

John Hudson

-- 

Tiro Typeworks        www.tiro.com
Gulf Islands, BC      [email protected]

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